alleryGene therapy that targets and corrects a defective gene in non-reproductive body cells is called:
AGerm line gene therapy
BSomatic gene therapy
CStem cell therapy
DRecombinant vaccination
Answer & Solution
Correct answer: B. Somatic gene therapy
1. Gene therapy replaces a defective gene by transferring functional genes into a patient.
2. When the correction is made in somatic (non-reproductive) cells it is somatic gene therapy.
3. Germ line gene therapy targets egg and sperm cells, so option A is the contrasting trap; stem cell therapy uses undifferentiated cells, a different approach.
4. Hence the answer is B.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit "Breeding and Biotechnology", p.300_
Keep practising Unit 6A: DNA and RNA Structure & Replication
Browse all Unit 6A: DNA and RNA Structure & Replication questions for AP Biology, or explore more Biology topics.
Related questions
In eukaryotes, primary mRNA transcript becomes mature mRNA afterThe 'one gene - one polypeptide' concept was proposed byIn prokaryotes, the small ribosomal subunit recognises the mRNA initiation site via theIn humans, the percentage of A in a DNA sample is 30 %. By Chargaff's rule, the percentageTranscription differs from replication in that itThe genetic code is described as degenerate becauseOkazaki fragments are formed on theDuring DNA replication, the enzyme that unwinds the double helix is